To provide a prepreg expressing low thermal expansion and high adhesiveness and a manufacturing method of the same, and a laminated plate, a metal foil-clad laminated plate, and a wiring board using the prepreg.
A thermosetting resin is obtained by reacting, in an organic solvent, (a) a siloxane resin having hydroxyl groups at its terminals represented by following general formula (I) and (b) a compound having at least two or more cyanate groups in one molecule, and contains 10-70 pts.mass of the siloxane resin (a) and 30-90 pts.mass of the compound (b) based on the sum total 100 pts.mass of the siloxane resin (a) and the compound (b). A prepreg is obtained by immersing in an organic fiber base material the thermosetting resin having a reaction rate of the compound (b) of 40-70 mol% and a thermosetting resin composition containing silica and a compound having at least two or more epoxy groups in one molecule.
IZUMI HIROYUKI
ISHIKURA KUMIKO
OZE MASAHISA
SAKAI KAZUNAGA
TAKAHARA NAOKI